Which architectural merger created the firm that later designed the innovative 'Twist' museum in Norway and the striking Beijing National Stadium (Bird's Nest)?

In the world of architecture, firms often merge to combine expertise, expand market reach, or create powerhouse design entities. These mergers can dramatically reshape the industry landscape, bringing together different design philosophies and creating new architectural visions. Test your knowledge about one of the most significant architectural firm mergers that changed how iconic structures are designed globally.

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Herzog & de Meuron + Foster + Partners
SOM + Gensler
Snøhetta + Ateliers Jean Nouvel
Herzog & de Meuron + Ai Weiwei (collaboration, not merger)